Carthy



W. J. McCARTHY.

LEAF PROJECTING DEVICE FOR LOOSE LEAF BINDERS.

APPLICATION FILED MAR. 25. I919.

Patented May 25, 1920.

2 SHEETS-SHEET l- W. J. McCARTHY'.

LEAF PROJECTING DEVICE FOR LOOSE LEAF BINDERS. APPLICATION FILED mm. 25,1919.

1,341,062. Patented May25,1920.

2 SHEETS-SHEET 2- LT U 65 U U LA L lit/ENTER m HILL/17M JN-GIIITTM I fsWILLIAM JOHN MCCARTHY, OF OTTAWA, ON TARIO, CANADA.

LEAF-PROJECTING DEVICE FOR LOOSE-LEAF BINDERS.

Application filed March 25, 1919.

To all whom it may concern:

Be it known that I, WILLIAMJOHN Mc- CAn'rHY, a subject of the King ofGreat Britain, and resident of the citg of Ottawa, in the Province ofOntario, ominion of Canada, have invented certain new and usefulImprovements in Leaf-Projecting Devices for Loose-Leaf Binders, of whichthe following is a specification.

This invention relates to improvements in leaf projecting devices forloose leaf binders, and the objects of the invention are to provide asimple and effective mechanism by which, when the binder is opened, theleaves may be projected outwardly to facilitate turning from one side tothe other which is hereinafter explained.

In loose leaf binders and especially loose leaf ledgers it is found thatwhen the books are opened it is difficult to turn the leaves owing tothe fact that the top edges of the central leaves are usuallyconsiderably below the corresponding edges of the outermost or backleaves, which causes the per son using the binder to thumb or finger thesheet and frequently completely disfigu're the same. According to thepresent invention means are provided for projecting the central sheetsof the binder outwardly to thereby cause the edges of the leaves to liein convenient position for engagement by the fingers of the user. Itconsists essentially of the improved construction hereinafter describedin detail in the accompanying specification and drawings.

In the drawings:

Figure 1 is an elevation of the rear part of the binder embodying thepresent invention.

Fig. 2 is an end view of the binder opened.

Fig. 3 is a cross section of the end of the binder closed.

Flg. 1s a perspectlve view of the proj ecting plates.

1g. 5 is a sectional view of the binder opened.

Fig. 6 1s a plan view of the end of one of the sheets of the binder.

Fig. '7 is a perspective view of an extort sion member for supportingthe leaves.

In the drawings like characters of reference indicate correspondingparts in all the figures.

Referring to the drawings, A and B reprepresent the binding members,movable to and from each other and connected by tele- Specifieation ofLetters Patent.

Patented May 25, 1920. Serial No. 285,004.

scoping binding posts 10. C represents the end plate. A suitablemechanism is provided for opening and closing the binding members to andfrom each other. This mechanism does not form part of the presentinvention and may be of any suitable character such, for example, asthat shown in my (to-pending application, Serial No. 284,235, filedMarch 22, 1919. The central binding post 11 is preferably removable,whereby the central binding post may be engaged with a perforation 12 inthe sheet I), while the posts 10 are engaged with open slots 13, thepost 11 being rendered removable in any desired way, as for example, inthe way described in my said copending application, whereby when thepost 11 is removed the sheets are free relatively to each other and tothe binder.

E and F represent the projecting plates which are connected to oppositebinding members, the form of connection illustrated comprising links 14which connect suitable pintles 15 on the plates with correspondingpintles 16 on the binding member. The member F is formed on the inneredge with a hook or hook-shaped portion 17 designed, when the binder isextended, to engage a corresponding hook or hook-shaped portion 18 onthe plate E, whereby when the hooks are engaged the members will becomehinged together and may be swung outwardly from the center into theV-shaped form shown in Fig. 5.

Suitable means are provided for moving the plates into the V-shaped formindicated. The means I have shown to accomplish this comprise cranks l9journaled in the ends 20 on the plate 0 and having rollers 21 on theinner crank arms 22 which are adapted to engage the outer surface of theplate E, the outer ends of the cranks being formed with suitable pivotedfinger rings 23 by which the cranks .19 may be turned.

To keep the plates E and F in normal position, flat springs 24 may beprovided on the binding member adapted to bear against the plates.

In the operation of frequently it is desired to move the sheets whichhave been posted to one side after they have been released and tosupport them posting the ledger in this position when the-binder is openas shown in Fig. 5, I provide a V-shaped extension member 25 of the formshown in Fig. 7 having blfurcated ends 26 and 27 .4: edges or adapted toengage the edge of the binding members A and as shown in Fig. 2 wherebythese members will form an extension of the plates E and F and sosupport the leaves.

To support the plates E and F when the binder is closed a plurality oftelescopic supporting posts 30 ma be provided of similar form to theposts 10 and containing a spring 31 by which each is caused to extend.To enable the plates E and F to fold'past the binding posts 10 and 11 aplurality of slots 32 of suitable form are provided in the plates.

In the operation of the device the binder is first opened to theposition shown in Figs. 1, 2 and 5, the cranks 19 are then turned,lifting the plates E and E and forcin them into the V-shaped positionshown in I ig. 5, the links 14: permitting the plates to swing upwardlyinto this position after the hookshaped ends 17 and 18 have come intoenga ement with each other. I

The leaves D in the binder being loose will take a position determinedby the shape of the plates E and D. It the binder had been opened in theordinary way the edges of the central sheets would be below the theouter leaves making it diflicult to turn them over. By the use of thepresent invention,however,the central leaves are caused to lie at leastin the same plane with the edges of the outer sheets, and if desired canbe made to project beyond such ends.

As many changes could be made in the above construction, and manyapparently widely different embodiments of my inven tion, within thescope of the claims, constructed without departing from the spirit orscope thereof, it is intended that all matter contained in theaccompanying specification and drawings, shall be interpreted asillustrative and not in a limiting sense.

What I claim as my invention is:

1. In a loose leaf binder, binding members, links hinged to the members,and plates hinged to the links and provided with hook shaped engagingends, the said plates being designed to open outwardly and adapted whenthe ends are interengaged to provide oppositely inclined supportingsurfaces for sheets.

2. The arrangement according to claim l, in which cranks are providedfor moving the plates outwardly.

3. The arrangement according to claim 1, in which the plates are springheld in normal position.

4. The combination, with the device according to claim 1, of anextension member supported on the binder and adapted to form anextension of the plates to support any leaves moved laterally.

5. An arrangement according to claim 1, including manually controlledmeans for operating the plates mounted independently thereof.

6. An arrangement according including telescoping members adapted tosupport the plates in normal position.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

WILLIAM JOHN MCCARTH Y.

Witnesses RUssnL B. SMART, P. M. GARROW.

to claim 1,

